汉语中有“要不是P,就Q”这种专门用来表示“反事实假设”的条件句(1)。此外,当“如果不是P,就Q”是“求因假设”时,它也可以表示“反事实假设”(2)。而日语中不存在这种专门表示“反事实假设”的条件句,基本上用「バ」条件句或「タラ」条件句来表示。不过,日语的“反事实假设复句”是存在若干表示“与事实相反” In Chinese, there is a conditional clause (1) specifically used to denote “counterfactual hypothesis” if it is not “P or Q.” In addition, it can also represent “counterfactual hypotheses ” (2) when “If Q is not P, then Q ” is “Seek for hypotheses ”. In Japanese, however, there is no such conditional expression that specifically states “counterfactual hypothesis” and is basically expressed in terms of “バ” conditionals or “taras” conditionals. However, the Japanese “anti-factual hypothetical complex sentence” is a number of representations “contrary to the facts”